6618490102784 has 176 divisors, whose sum is σ = 15214314333696. Its totient is φ = 2818967961600.

The previous prime is 6618490102747. The next prime is 6618490102823. The reversal of 6618490102784 is 4872010948166.

It is a happy number.

It is a super-2 number, since 2×6618490102784² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817800242 + ... + 817808334.

Almost surely, 2^{6618490102784} is an apocalyptic number.

6618490102784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6618490102784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7607157166848).

6618490102784 is an abundant number, since it is smaller than the sum of its proper divisors (8595824230912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6618490102784 is a wasteful number, since it uses less digits than its factorization.

6618490102784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812 (or 8794 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 6618490102784 in words is "six trillion, six hundred eighteen billion, four hundred ninety million, one hundred two thousand, seven hundred eighty-four".